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MARY JEAN HAYES RD, LDN
NPI 1851116271
Dietitian, Registered in Pittsfield, MA

Active since November 20, 2024
510 NORTH ST STE 6, PITTSFIELD, MA 01201(413) 445-9243 Get Directions Write a Review

NPPES record last updated: November 20, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mary Jean Hayes Rd, Ldn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY JEAN HAYES RD, LDN (NPI 1851116271) is an individual dietitian, registered in Pittsfield, Massachusetts, licensed in Massachusetts (LDN7877) and active in the NPI registry since November 2024.

NPPES Registry Identity

NPI1851116271
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameMARY JEAN HAYESCredential: RD, LDN
Location Address510 NORTH ST STE 6Pittsfield, MA 01201-5493
Mailing Address21 Hoover StPittsfield, MA 01201-1738 · (413) 841-8333
Phone(413) 445-9243
Sole ProprietorNo
Enumeration DateNovember 20, 2024
NPPES CertifiedNovember 20, 2024
✔ NPI 1851116271 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
License✔ Licensed in MA · LDN7877
Definition
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
510 NORTH ST STE 6, Pittsfield, MA 01201
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Jean Hayes Rd, Ldn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignments

2

Medicare enrollment records show Mary Hayes reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Berkshire Medical Center, Inc
0.3 mi
General Acute Care Hospital
725 NORTH ST
Pittsfield, MA 01201
  • Reassigned Medicare billing, Massachusetts enrollment
  • 394 clinicians in this Medicare group
NPI 1295765261 (413) 447-2000
North Adams Regional Hospital Corporation
19 mi
Critical Access
71 HOSPITAL AVE
North Adams, MA 01247
  • Reassigned Medicare billing, Massachusetts enrollment
  • 186 clinicians in this Medicare group
NPI 1437839669 (413) 447-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. ASHLEY NICOLE CLANCY-GAGNON AUD
Audiologist
510 NORTH ST STE 6
PITTSFIELD, MA 01201
Berkshire County (413) 447-2225
SHAUN M FOX RD, LDN
Dietitian, Registered
510 NORTH ST STE 6
PITTSFIELD, MA 01201
Berkshire County (413) 445-9243
KATHRYN MCMILLAN RD
Dietitian, Registered
510 NORTH ST STE 6
PITTSFIELD, MA 01201
Berkshire County (413) 445-9243
AMBER SWISHER
Audiologist
510 NORTH ST STE 6
PITTSFIELD, MA 01201
Berkshire County (413) 447-2225
DR. ALLISON AMEND AU.D.
Audiologist
510 NORTH ST STE 6
PITTSFIELD, MA 01201
Berkshire County (413) 447-2225
ALICE M BASSEN AU.D CCC/A
Audiologist
510 NORTH ST STE 6
PITTSFIELD, MA 01201
Berkshire County (413) 447-2225
SOPHIE CARNES JANNEN
Nurse Practitioner (Family)
510 NORTH ST STE 6
PITTSFIELD, MA 01201
Berkshire County (802) 442-6361
ERICA PATTERSON
Hearing Instrument Specialist
510 NORTH ST STE 6
PITTSFIELD, MA 01201
Berkshire County (413) 447-2225

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Hayes's NPI number?

The NPI number for Mary Hayes is 1851116271. It was assigned to this individual provider in the NPPES registry on November 20, 2024.

Where is Mary Hayes located?

Mary Hayes practices at 510 North St Ste 6, Pittsfield, MA 01201. The listed phone number is (413) 445-9243.

What is Mary Hayes's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

Is Mary Hayes enrolled in Medicare?

Yes. Mary Hayes is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mary Hayes's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Hayes reassigns Medicare benefits to 2 organizations: Berkshire Medical Center, Inc (Pittsfield, MA) and North Adams Regional Hospital Corporation (North Adams, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Hayes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mary Hayes was last updated on November 20, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.